Plant Management, Supervision, and Administration
Domain focus
This domain tests supervision of operations, maintenance, outages, budgets, procedures, training, and performance metrics. Class 1 questions ask how management decisions affect reliability, safety, and cost.
Core rules
- Availability = available hours/period hours; capacity factor = actual generation/maximum possible generation. They measure different things.
- Planned outages reduce forced outages but must be scheduled with fuel, load, and contractor constraints.
- Management of change controls modifications to procedures, equipment, and software; undocumented changes create risk.
- Shift turnover, operating logs, and clear work orders preserve continuity.
- Key performance indicators include heat rate, availability, forced outage rate, maintenance backlog, and safety incidents.
Worked example
A 720-hour period has 36 hours forced outage and 12 hours planned outage. Available hours = 720 − 36 − 12 = 672. Availability = 672/720 = 93.3%. If the plant generated 500,000 MWh and its maximum possible was 600,000 MWh, capacity factor = 83.3%. The reasoning: availability excludes all outage hours; capacity factor compares actual output with maximum output.
Traps
Using availability and capacity factor interchangeably; deferring maintenance to improve short-term budget; allowing bypassed procedures; and failing to investigate near misses. Also verify contractor qualifications and permit compliance.